#include <bits/stdc++.h>
using namespace std;

int main() {
  long long n;
  cin>>n;
  vector<long long> pow2;
  vector<long long> n_minus_pow2;
  for (int i=0; i<63; i++) {
    long long x = pow(2, i);
    pow2.push_back(x);
    if (n - x > 0) {
      n_minus_pow2.push_back(n - x);
    }
  }
  reverse(n_minus_pow2.begin(), n_minus_pow2.end());
  int a = 1;
  while (a < n) {
    if (binary_search(pow2.begin(), pow2.end(), a)) {
      ++a;
      continue;
    }
    if (binary_search(n_minus_pow2.begin(), n_minus_pow2.end(), a)) {
      ++a;
      continue;
    }
    cout<<a<<" "<<n-a<<endl;
    return 0;
  }
  cout<<-1<<endl;
}